ATE939T1 - DEVICE FOR POSITIONING MAGNETIC HEADS. - Google Patents

DEVICE FOR POSITIONING MAGNETIC HEADS.

Info

Publication number
ATE939T1
ATE939T1 AT79104017T AT79104017T ATE939T1 AT E939 T1 ATE939 T1 AT E939T1 AT 79104017 T AT79104017 T AT 79104017T AT 79104017 T AT79104017 T AT 79104017T AT E939 T1 ATE939 T1 AT E939T1
Authority
AT
Austria
Prior art keywords
coil
magnetic heads
flat
carriage
disc
Prior art date
Application number
AT79104017T
Other languages
German (de)
Inventor
Klaus Manzke
Roland Brotzler
Original Assignee
Basf Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Basf Aktiengesellschaft filed Critical Basf Aktiengesellschaft
Application granted granted Critical
Publication of ATE939T1 publication Critical patent/ATE939T1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Moving Of Heads (AREA)
  • Vehicle Body Suspensions (AREA)
  • Magnetic Heads (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Automatic Control Of Machine Tools (AREA)

Abstract

A device for positioning objects of low mass, particularly magnetic heads over preselected tracks on at least one magnetic disc in a disc file in which there is provided a carriage, displaceable toward and away from the axis of rotation of the magnetic disc, which serves as carrier not only for the magnetic heads but also for the coil of a linear drive means, the said coil being a flat coil which projects into the working air gap of a magnet assembly comprising at least one flat magnet, the flat coil and magnet assembly being arranged in such a way that the force vector lies essentially in the plane in which the carriage is displaceably mounted.
AT79104017T 1978-10-26 1979-10-18 DEVICE FOR POSITIONING MAGNETIC HEADS. ATE939T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782846599 DE2846599A1 (en) 1978-10-26 1978-10-26 DEVICE FOR POSITIONING LOW-SIZE ITEMS
EP79104017A EP0011149B1 (en) 1978-10-26 1979-10-18 Positioning device for magnetic heads

Publications (1)

Publication Number Publication Date
ATE939T1 true ATE939T1 (en) 1982-05-15

Family

ID=6053158

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79104017T ATE939T1 (en) 1978-10-26 1979-10-18 DEVICE FOR POSITIONING MAGNETIC HEADS.

Country Status (8)

Country Link
US (1) US4322762A (en)
EP (1) EP0011149B1 (en)
JP (1) JPS5560802A (en)
AT (1) ATE939T1 (en)
AU (1) AU5213779A (en)
CA (1) CA1134946A (en)
DE (2) DE2846599A1 (en)
ZA (1) ZA795718B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001223A1 (en) * 1979-10-18 1981-04-30 Burroughs Corp Flat-coil actuator array for multi-head disk drive
EP0055334B1 (en) * 1980-12-31 1985-01-30 International Business Machines Corporation Magnetic recording disk file
US4620253A (en) * 1980-12-31 1986-10-28 International Business Machines Corporation Low mass actuator system for magnetic recording disk
US4396966A (en) * 1980-12-31 1983-08-02 International Business Machines Corporation Low mass actuator system for magnetic recording disks with half strength end poles
US4387409A (en) * 1981-03-30 1983-06-07 Data General Corporation Magnetic head arm mounting apparatus
US4415941A (en) * 1981-06-29 1983-11-15 Atasi Corporation Linear actuator for memory storage device
US4506307A (en) * 1981-11-10 1985-03-19 Ibm Magnetic head slider and actuator assembly
DE3265091D1 (en) * 1981-11-10 1985-09-05 Ibm Magnetic head air bearing slider and electromagnetic actuator assembly
NL8204981A (en) * 1982-12-24 1984-07-16 Philips Nv ELECTRODYNAMIC DEVICE FOR TRANSLATING AN OBJECTIVE.
NL8300133A (en) * 1983-01-14 1984-08-01 Philips Nv Apparatus for registering and / or reading information using a radiation beam.
JPS59210576A (en) * 1983-05-13 1984-11-29 Fujitsu Ltd Magnetic disk access device
FR2547431B1 (en) * 1983-06-10 1987-04-10 Socapex
DE3326238C2 (en) * 1983-07-21 1986-04-17 Philips Patentverwaltung Gmbh, 2000 Hamburg Linear motor for quickly moving a mass-loaded rotor slide component back and forth
NL8501991A (en) * 1985-07-11 1987-02-02 Philips Nv DEVICE FOR TRANSLATING A SLID AND ELECTRODYNAMIC DEVICE EQUIPPED WITH THE SAID DEVICE.
EP0222362B1 (en) * 1985-11-13 1990-05-09 Sharp Kabushiki Kaisha Linear motor
JP2523510B2 (en) * 1986-07-02 1996-08-14 株式会社日立製作所 Magnetic disk device
JPH071607B2 (en) * 1986-07-31 1995-01-11 三菱電機株式会社 Floppy disk drive
JPS63138575A (en) * 1986-11-29 1988-06-10 Toshiba Corp Carriage mechanism for floppy disk device
US5148340A (en) * 1990-04-18 1992-09-15 International Business Machines Corporation Bifurcated air bearing actuator assembly for a disk drive system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136934A (en) * 1960-03-31 1964-06-09 Printed Motors Inc Reciprocating linear motor system
US3505544A (en) * 1968-02-09 1970-04-07 Data Products Corp Linear motor
US3659124A (en) * 1970-09-28 1972-04-25 Vernitron Corp Linear motion motor with rectangular coil construction
NL7106185A (en) * 1971-05-06 1972-11-08
JPS5180205A (en) * 1975-01-08 1976-07-13 Hitachi Ltd
NL7612401A (en) * 1976-11-09 1978-05-11 Philips Nv ELECTRICALLY CONTROLLED LOWER ARM DEVICE.
DE7716251U1 (en) * 1977-05-23 1978-01-19 Basf Ag, 6700 Ludwigshafen DEVICE FOR POSITIONING OBJECTS

Also Published As

Publication number Publication date
CA1134946A (en) 1982-11-02
US4322762A (en) 1982-03-30
DE2962640D1 (en) 1982-06-09
JPS5560802A (en) 1980-05-08
EP0011149A1 (en) 1980-05-28
EP0011149B1 (en) 1982-04-28
ZA795718B (en) 1980-11-26
DE2846599A1 (en) 1980-04-30
AU5213779A (en) 1980-05-01

Similar Documents

Publication Publication Date Title
ATE939T1 (en) DEVICE FOR POSITIONING MAGNETIC HEADS.
ATE2583T1 (en) POSITIONING DEVICE FOR A MAGNETIC HEAD OF A MAGNETIC TAPE DEVICE.
BR9000309A (en) KNIFE SHARPENING APPLIANCE
BR9105644A (en) APPLIANCE TO TEND SCISSORS
ATE20660T1 (en) MAGNETIC DEVICE, ESPECIALLY FOR LOADING.
GB1043161A (en) Improvements in or relating to microscope stages
JPS55157161A (en) Magnetic disc device
JPS5243409A (en) Scanner drive unit of recording and reproducing device
JPS5589951A (en) Disc drive unit
JPS539110A (en) Magnetic head of vertical magnetization recording system
JPS549611A (en) Magnetic disc apparatus
JPS52130313A (en) Servo-writing device for magnetic disk units
SU680040A1 (en) Device for moving magnetic heads between magnetic discs
JPS5250215A (en) Driving device for magnetic disc
JPS56153526A (en) Position regulator for magnetic substance to be tested
JPS51123991A (en) Cutting device
SU111349A1 (en) Centerless grinding machine knife
JPS53149004A (en) Magnetic material applying device for magentic disc
JPS5311464A (en) Drag linear motor
GB650744A (en) Improvements in or relating to method, apparatus and equipment for magnetically recording intelligence
JPS5492213A (en) Rotary magnetic head apparatus
JPS6417225A (en) Objective lens driving device
JPS5251915A (en) Cassette mounding and dismounting system in cassette type magnetic rec ording and playback apparatus
JPS51123124A (en) Magnetic sheet holder
JPS51147871A (en) Travelling crane for warehouse facilities

Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee